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A153394 as a simple table

n a(n)
0 1
1 3
2 18
3 118
4 813
5 5799
6 42470
7 317637
8 2416671
9 18649874
10 145655292
11 1149199212
12 9146686605
13 73354982763
14 592217363334
15 4809250320023
16 39258457746069
17 321964620209940
18 2651536017682988
19 21919266484180533
20 181820251665093357

[1,3,18,118,813,5799,42470,317637,2416671,
 18649874,145655292,1149199212,9146686605,
 73354982763,592217363334,4809250320023,
 39258457746069,321964620209940,2651536017682988,
 21919266484180533,181820251665093357]

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Last modified September 3 01:19 EDT 2024. Contains 375634 sequences. (Running on oeis4.)